Learn why early humans may have started using fires — not for cooking, but for securing and preventing their food from ...

As a day progresses the air near the water’s surface can warm some and the inversion erodes. The smoke will lift and ...

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

It's not Halloween, but it looks straight out of a horror movie: The Mackinac Bridge looked like it disappeared into some ...

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

As hundreds of wildfires burn across Canada, smoke is traveling south and potentially affecting Americans’ health. Here's why ...

Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching ...

Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

On Wednesday, it was the Mackinac Bridge’s turn to disappear behind a plume. The Mackinac Bridge Authority cameras showed the ...

Smoke from the Canadian wildfires continues to bring dangerous air quality to parts of the northern U.S., with hazy skies ...